JP5434084B2 - connector - Google Patents

Description

  The present invention relates to a connector that circulates liquid by interposing between containers, for example, a medical connector that circulates liquid between a drug solution bag and a vial.

  Drugs such as anticancer agents are stored in a powder state for dissolution stability, and are dissolved when used. In this case, the solution is injected into the vial containing the drug, and the dissolved drug solution is injected into the drug solution bag. And the chemical | medical solution in a chemical | medical solution bag will be administered in the body through the tube attached to the chemical | medical solution bag. For example, Patent Documents 1 and 2 below propose tools for injecting a chemical solution in a vial into a chemical solution bag.

  In the device of Patent Document 1, one end of a double-ended needle is punctured into the mouth of a container (vial bottle) containing a drug, and the other end of the double-ended needle is punctured into the mouth of a container (drug solution bag) containing diluent In other words, the diluting solution or the medicinal solution dissolved in the diluting solution is circulated between the container containing the drug and the container containing the diluting solution. In this distribution, a syringe luer is inserted into the port portion of the tool, the plunger is moved, and air is fed into the container or air is sucked into the container.

  The device of Patent Document 2 is a state in which the bottle needle formed on the transfer device is inserted into the stopper of the glass bottle (vial bottle) and the hollow needle is inserted into the stopper of the empty bag (medical solution bag). The solution is transferred to an empty bag. In this transfer, external air is sent into the glass bottle by repeatedly compressing and extending the pump.

JP 2002-238879 A Japanese Utility Model Publication No. 56-95247

  However, the tools proposed in Patent Documents 1 and 2 require a syringe and a pump, and the structure is complicated for the connection. In addition, when the liquid is circulated between the containers, it is necessary to operate a syringe and a pump.

  The present invention solves the above-described conventional problems, and an object of the present invention is to provide a connector that can allow liquid to flow between containers with a simple configuration and a simple operation.

In order to achieve the above object, the connector of the present invention is connected to the first container and the second container, and allows liquid to flow between the first container and the second container via the shaft portion. A connector to be circulated, wherein the shaft portion includes a plurality of through-flow passages penetrating the shaft portion, and the plurality of through-flow passages form openings at both ends of the shaft portion, The shaft portion forms a separation portion that is interposed between the openings and separates the openings. When a plane in a direction orthogonal to the axial direction of the shaft portion is a horizontal plane, the separation portion is the separation portion. in extended portion there of from the horizontal plane extending distally of the shaft portion including a separate said opening is, at both ends of the shaft portion, with increasing distance from the tip of the shaft portion, the central axis of the shaft portion An inclined surface inclined so as to move away from the surface is formed, and separated on the inclined surface by the separation unit. The opening separated by the separating portion is formed on the flat inclined surface, and the connector includes a first connection portion that engages with the first container. And a second connecting portion that engages with the second container, and the second connecting portion is integrally formed with the engaging portion that engages with the second container and the shaft portion. A needle-like portion that pierces the second container is formed at an end portion on the second connection portion side of both end portions of the shaft portion, and the first connection portion is A release mechanism for releasing the engagement with the first container, and the second connecting portion does not include a release mechanism for releasing the engagement with the second container. To do.

  According to the connector of the present invention, the liquid can be circulated between the containers with a simple configuration and a simple operation.

The figure which showed the usage example of the connector 1 which concerns on one embodiment of this invention. The figure which looked at FIG. 1 from the arrow A direction. The disassembled perspective view of the connector 1 which concerns on one embodiment of this invention. The disassembled perspective view which looked at the connector 1 of FIG. 3 from the angle different from FIG. Sectional drawing of the connector which concerns on one embodiment of this invention. (A) The figure is an enlarged view of the longitudinal section of the edge part of the axial part 7 shown in FIG. 5, (b) The figure is an enlarged view of the longitudinal section of the edge part of the axial part 100 which concerns on a comparative example. Sectional drawing which shows another example of the edge part shape of the axial part which concerns on one embodiment of this invention. FIG. 3 is a cross-sectional view showing a state in which a chemical liquid generated by dissolving a powdered drug in the vial bottle 20 is injected into the chemical liquid bag 10 in the embodiment of the present invention. Sectional drawing which shows the state before the connection of the 1st connection part 3 and the chemical | medical solution bag 10 in one embodiment of this invention. Sectional drawing which shows the state which connected the 1st connection part 3 to the port part 41 in one embodiment of this invention. Sectional drawing which shows the state before the connection of the 2nd connection part 4 and the vial bottle 20 in one embodiment of this invention. Sectional drawing which shows the state which connected the 2nd connection part 4 and the vial bottle 20 in one embodiment of this invention. The perspective view of the connector 50 which concerns on Embodiment 2 of this invention. FIG. 14 is a longitudinal sectional view of the connector 50 shown in FIG. 13. In Embodiment 2 of this invention, the partial enlarged view which showed the state before connecting the 1st connection part 51 to the chemical | medical solution back | bag 10 side.

  The connector of the present invention includes a plurality of through channels in the shaft portion interposed between the containers. According to this configuration, at least one of the plurality of through channels serves as a through channel for circulating air, and at least one serves as a through channel for circulating liquid. . For this reason, the liquid can be circulated between the containers with a simple configuration and without any special operation.

  Further, the shaft portion is formed with a separation portion that is interposed between the openings and separates the opening, and the separation portion has an extension portion that extends from the horizontal plane including the separated opening to the tip end side of the shaft portion. is there. According to this configuration, it is possible to prevent the air reservoir from simultaneously closing both the openings separated by the separation unit, and it is possible to prevent the liquid flow between the containers from being hindered.

  In the connector of the present invention, inclined surfaces that are inclined away from the center axis of the shaft portion as the distance from the tip of the shaft portion is formed at both ends of the shaft portion, and the inclined surface is formed on the inclined surface. It is preferable that the opening separated by the separation part is formed. According to this configuration, it is more advantageous to prevent the air reservoir from simultaneously closing both the openings separated by the separation unit.

  Moreover, it is preferable that the said opening isolate | separated by the said separation part is formed on the said flat inclined surface. According to this configuration, compared to the case where the opening is formed on the conical surface, the interval between the openings separated by the separating portion can be increased in the circumferential direction of the shaft portion, and the openings where the air pockets are separated by the separating portion can be simultaneously formed. It becomes advantageous for prevention of blocking.

  In addition, a first connection portion that engages with the first container and a second connection portion that engages with the second container are provided, and the second connection portion includes the second connection portion. The engaging portion that engages with the container and the shaft portion are integrated, and the second container is pierced into the end portion on the second connection portion side of both end portions of the shaft portion. It is preferable to form a needle-like portion. According to this configuration, it is possible to prevent the container from coming off during the liquid distribution operation between the containers, and in particular, it is possible to prevent easy removal of the second container and to facilitate connection to the second container.

  The first connection portion includes a release mechanism for releasing the engagement with the first container, and the second connection portion is a release for releasing the engagement with the second container. It is preferable that no mechanism is provided. According to this configuration, it is possible to prevent easy removal of the second container while facilitating removal of the first connection portion from the first container. As a result, when the second container is discarded, it is easy to execute the work procedure of removing the second container integrally with the connector, and the second container can be removed by removing the second container alone. Content leakage can be prevented.

  The engagement portion of the second connection portion is a cylindrical connection port that engages with the second container, and the connection port includes a protruding portion that protrudes from an inner peripheral surface of the connection port. It is preferable to form. According to this configuration, the engagement between the second connecting portion and the second container becomes more reliable, which is advantageous for preventing the second container from coming off.

  Moreover, it is preferable that the said connection port forms the slit which notched the side surface of the said connection port. According to this configuration, the engagement between the second connecting portion and the second container is facilitated.

  The first connecting portion is integrally formed with a lever-type lock having a claw portion that engages with a part of the first container, and the lever-type lock is engaged with the first container. It also serves as a release mechanism for releasing the engagement, and it is preferable that the engagement between the lever-type lock and the first container is released by the bending of the lever-type lock. According to this configuration, the first connecting portion can be easily attached and detached by opening and closing the lever portion of the lever-type lock.

  Further, the first connecting portion is a rotary lock, and the rotary lock includes a concave portion that engages with a convex portion formed in the first container, and the rotary lock is the first lock. It also serves as a release mechanism for releasing the engagement with the container, and the engagement between the convex portion and the concave portion is preferably released by the rotation of the rotary lock around the axis. Also with this configuration, the first connecting portion can be easily attached and detached. In addition, the engagement between the first connecting portion and the first container can be easily released. However, since this requires a rotational operation of the rotary lock, inadvertent release can be prevented. it can.

  Moreover, it is preferable that the shaft portion has a portion covered with a shield that can be opened and closed by expansion and contraction. According to this configuration, it is possible to prevent the liquid from leaking from the shaft portion even after the first connection portion is removed from the first container. For this reason, if the second container is discarded in a state where the connection state between the second connection portion and the second container is maintained, leakage of the liquid in the second container is prevented. .

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

(Embodiment 1)
FIG. 1 is a diagram showing a usage example of a connector 1 according to an embodiment of the present invention. FIG. 2 is a view of FIG. 1 viewed from the direction of arrow A. In the example of FIGS. 1 and 2, a chemical solution bag 10 that is a first container and a vial bottle 20 that is a second container are connected via a connector 1.

  In the following description, components attached to the chemical solution bag 10, for example, the connection port 40 and the port portion 41 in FIG. It is a component part. Therefore, in FIG. 5, the first connection port 3 is engaged with the port portion 41, which means that the first connection port 3 is engaged with the chemical solution bag 10.

  Similarly, in FIG. 5, the rubber stopper 23 and the cap 24 attached to the vial bottle 10 are components of the vial bottle 10. In the illustration of FIG. 5, the second connection port 4 can be considered to be engaged with the cap 24 or with the mouth portion 22 of the vial 10, but is engaged with the vial 20. It does not change to what you do.

  The chemical solution bag 10 is formed by forming a flexible resin sheet into a bag shape. The chemical solution bag 10 can be formed, for example, by superposing two resin sheets and joining the peripheral portions by heat welding or the like. The vial 20 is a container containing a medicine, and is, for example, a glass bottle whose mouth is sealed with a rubber stopper and a cap.

  FIG. 3 is an exploded perspective view of the connector 1. As shown in FIG. 3, the connector 1 can be disassembled into a connector main body 2 and a first connection portion 3. The connector main body 2 is formed by integrating the second connecting portion 4 with the shaft portion 7.

  A pair of through channels 8 and 9 (FIG. 5) is formed inside the shaft portion 7, and a pair of openings 14 and 15 are formed at the end of the shaft portion 7. A separation part 18 is interposed between the opening 14 and the opening 15. Although details will be described later, one of the through channels 8 and 9 is a through channel through which liquid flows, and the other is a through channel through which air flows.

  As for the 1st connection part 3, the cylindrical connection port 11 and the lever-type lock 12 are united. The 1st connection part 3 is a connector for connecting the connector 1 to the chemical | medical solution bag 10 (FIG. 1). When connecting with the chemical solution bag 10, a cylindrical port portion 41 (FIG. 9) fixed to the chemical solution bag 10 is inserted into the connection port 11.

  At this time, the claw portion 13 of the lever-type lock 12 is engaged with the end surface 41a (FIG. 10) of the port portion 41 while the lower portion of the lever-type lock 12 is curved in the direction of the arrow c. Details of the connection between the first connecting portion 3 and the chemical solution bag 10 will be described later with reference to FIGS.

  FIG. 4 is an exploded perspective view of the connector 1 as seen from a different angle from that of FIG. In FIG. 4, the back surface side of the 1st connection part 3 and the connector main body 2 is shown in figure. A connecting tubular portion 21 is formed on the back side of the first connecting portion 3. The first connecting portion 3 can be connected to the connector body 2 by fitting the connecting tubular portion 21 to the shaft portion 7 of the connector body 2.

  The second connection portion 4 is a cylindrical connection port 6 in which a shaft portion 7 is integrated. As described above, a pair of through channels 8 and 9 (FIG. 5) are formed inside the shaft portion 7. A pair of openings 16 and 17 are formed at the end of the shaft portion 7, and a separation portion 18 is interposed between the opening 16 and the opening 17. Further, the end portion of the shaft portion 7 forms a needle-like portion 28.

  The second connection portion 4 is for connecting the connector body 2 to the vial 20. The connection port 6 is an engagement portion that engages with the mouth portion 22 (FIG. 5) of the vial bottle 20. The tip of the needle-like part 28 is sharp, and the needle-like part 28 can be pierced through the rubber stopper 23 (FIG. 5) of the vial 20.

  When connecting the second connecting portion 4 and the vial bottle 20, the needle-like portion 28 is pierced through the rubber stopper 23 (FIG. 5) of the vial bottle 20, and the vial is inserted into the connection port 6 of the second connecting portion 4. The mouth portion 22 of the bottle 20 is engaged. Details of this connection will be described later with reference to FIGS.

  FIG. 5 shows a cross-sectional view of the connector 1. This figure corresponds to a longitudinal sectional view of the connector 1 and its peripheral part in FIG. The connecting tubular portion 21 of the first connecting portion 3 and the shaft portion 7 integrated with the connector main body 2 are fitted. As a result, the first connecting portion 3 is connected to the connector body 2.

  A port portion 41 is attached to the distal end portion of the connection port 40 attached to the chemical solution bag 10. The port part 41 is inserted into the connection port 11 of the first connection part 3. Although not shown in the cross-sectional state of this figure, the claw portion 13 (FIG. 3) of the lever-type lock 12 integral with the first connection portion 3 is engaged with the end surface 41a of the port portion 41 to thereby perform the first connection. Part 3 is connected to port part 41 (FIG. 10). As described above, details of this connection will be described later with reference to FIGS.

  A pair of through channels 8 and 9 are formed in the shaft portion 7. The through flow path 8 has openings 14 and 16 formed at both ends of the shaft portion 7, and the through flow path 9 has openings 15 and 17 formed at both ends of the shaft portion 7.

  The distal end portion of the shaft portion 7 pushes up a septum (partition wall) 42 attached to the port portion 41. The septum 42 is formed by forming a slit in a soft material. In the state of FIG. 5, the distal end portion of the shaft portion 7 is opened by breaking the slit of the septum 42 by pushing up the septum 42. Thereby, the internal space of the connection port 40 and the pair of through channels 8 and 9 of the shaft portion 7 are connected.

  The mouth portion 22 of the vial 20 is sealed with a rubber stopper 23 and a cap 24. The rubber stopper 23 is press-fitted into the opening of the vial 20. The cap 24 is formed by processing a thin metal plate, for example, and covers the mouth 22 of the vial 20. As shown in FIG. 5, the vial 20 and the connector body 2 are connected by the second connecting portion 4. Details of this connection will be described later with reference to FIGS.

  In the state of FIG. 5, the liquid is circulated between the vial 20 and the drug solution bag 10 through the shaft portion 7. In the state of FIG. 5, the chemical solution bag 10 is on the upper side, and the vial bottle 20 is on the lower side. In this case, the solution in the drug solution bag 10 flows toward the lower vial 20 side. More specifically, the solution in the drug solution bag 10 goes down through the through channel 8 or the through channel 9 through the connection port 40 and is injected into the vial 20.

  In this case, as the amount of the solution injected into the vial 20 increases, the air in the vial 20 is released to the outside. More specifically, the air in the vial 20 rises in the through channel 8 or the through channel 9 and is injected into the drug solution bag 10 through the connection port 40.

  Therefore, in the state of FIG. 5, the dissolved solution in the drug solution bag 10 descends in one of the through channels 8 or 9, and in the vial 20 in the other through channel. The air will rise. For this reason, it becomes possible to inject | pour the solution in the chemical | medical solution bag 10 into the vial bottle 20 without performing special operation.

  When the solution is injected into the vial 20, the powdered medicine in the vial 20 is dissolved with the solution. This dissolution can be promoted by shaking the vial 20.

  Next, according to the end shape of the shaft portion 7 shown in FIG. 5, the certainty of the injection of the lysing solution into the vial 20 is enhanced. This will be described with reference to FIG. 6A is an enlarged view of the longitudinal section of the end portion of the shaft portion 7 shown in FIG. 5, and FIG. 6B is an enlarged view of the longitudinal section of the end portion of the shaft portion 100 according to the comparative example. It is.

  In the longitudinal section of the shaft portion 7 shown in FIG. 6A, a separation portion 18 is formed that is interposed between the opening 14 and the opening 15 and separates the opening 14 and the opening 15. Reference numeral 25 denotes a horizontal plane in a direction orthogonal to the axial direction of the shaft portion 7. The horizontal surface 25 includes both the opening 14 and the opening 15. At the end portion of the shaft portion 7, an inclined surface 19 is formed that is inclined so as to move away from the central axis 29 of the shaft portion 7 as the distance from the tip of the shaft portion 7 increases. An opening 14 and an opening 15 are formed in the inclined surface 19.

  Here, in FIG. 6A, when the shaft portion 7 is in the liquid and air rises from the through flow path 9, an air reservoir 26 may be formed so as to close the opening 15. However, in the configuration of FIG. 6A, the separating portion 18 has an extending portion 18 a that extends from the horizontal surface 25 to the distal end side of the shaft portion 7. This prevents the air reservoir 26 from expanding to the air reservoir 31 indicated by the two-dot chain line, that is, prevents both the openings 14 and 15 from being simultaneously closed and obstructing the liquid flow between the containers. it can.

  This is because the air in the air reservoir 26 has to get over the extending portion 18 a of the separating portion 18 in order for the air reservoir 26 to expand to the state of the air reservoir 31. In the configuration of FIG. 6A, the openings 14 and 15 are formed on the inclined surface 19, and the air reservoir 26 is difficult to expand upward. This is also advantageous in preventing air pockets from blocking both openings 14 and 15 simultaneously.

  Moreover, it is preferable that the inclined surface 19 in which the openings 14 and 15 are formed is planar. According to this configuration, compared to the case where the openings 14 and 15 are formed on the conical surface, the interval between the openings 14 and 15 can be increased in the circumferential direction of the shaft portion 7, and the air pockets of the openings 14 and 15 can be increased. This is advantageous for preventing both from being blocked simultaneously.

  In the shaft portion 100 according to the comparative example of FIG. 6B, the openings 103 and 104 of the through channels 101 and 102 are both on the horizontal plane 105. Similar to FIG. 6A, when the shaft portion 100 is in the liquid and the air rises from the through channel 101, the air reservoir 106 may be formed so as to close the opening 103.

  On the other hand, the shaft portion 100 does not have a portion extending upward from the horizontal plane 105, and there are no inclusions that hinder the expansion of the air reservoir 106 between the openings 103 and 104. For this reason, the air reservoir 106 expands to the air reservoir 107, and a state in which both the openings 103 and 104 are simultaneously closed by the air reservoir is likely to occur. In this state, the liquid is prevented from flowing into the opening 104.

  FIG. 7 is a cross-sectional view showing another example of the end shape of the shaft portion. For convenience of explanation, the same reference numerals are given to the portions corresponding to the portions given the respective reference numerals in FIG. The opening 14 and the opening 15 are formed on the side surface 7 a of the shaft portion 7. The separation part 18 is interposed between the opening 14 and the opening 15. The separating portion 18 has an extending portion 18 a that extends from the horizontal surface 25 including both the opening 14 and the opening 15 toward the distal end side of the shaft portion 7.

  Also in the configuration of FIG. 7, in order to expand the air reservoir that closes the opening 15 to the air reservoir that simultaneously closes both the openings 14 and 15, the air reservoir that closes the opening 15 is the extended portion 18 a of the separating portion 18. You have to get over. Accordingly, in the configuration of FIG. 7 as well, as in the configuration of FIG. 6A, it is possible to prevent the air reservoir from blocking both the openings 14 and 15 at the same time.

  In the configuration of FIG. 7, the openings 14 and 15 are arranged so as to sandwich the central axis 29 of the shaft portion 7. For this reason, the shortest distance which connects the opening 14 and the opening 15 is long. This is also advantageous in preventing air pockets from blocking both openings 14 and 15 simultaneously.

  Next, the case where the medicine in the vial 20 is injected into the chemical solution bag 10 will be described with reference to FIG. FIG. 8 is a cross-sectional view showing a state in which a drug solution generated by dissolving a powdered drug in the vial bottle 20 is injected into the drug solution bag 10. In FIG. 8, the vertical relationship between the connection port 40 of the drug solution bag 10 and the vial bottle 20 is opposite to that in FIG. 5. That is, in FIG. 5, the vial 20 is on the lower side, whereas in FIG. 8, the vial 20 is on the upper side.

  In this case, the solution on the vial 20 side flows toward the connection port 40 side of the lower drug solution bag 10. More specifically, the chemical solution in the vial bottle 20 descends through the through channel 8 or the through channel 9 and is injected into the drug solution bag 10 through the connection port 40.

  On the other hand, as the injection amount of the chemical solution into the chemical solution bag 10 increases, the inside of the vial 20 is depressurized, and the air in the chemical solution bag 10 is drawn into the vial 20. More specifically, the air in the drug solution bag 10 rises in the through flow path 8 or the through flow path 9 and is injected into the vial bottle 20.

  Therefore, in the state of FIG. 8, the chemical solution in the vial 20 descends in one of the through flow channels 8 or 9 and the air in the chemical solution bag 10 flows in the other through flow channel. Will rise. Therefore, from the state shown in FIG. 5, the chemical solution in the vial 20 is injected into the chemical solution bag 10 without performing a special operation only by reversing the vertical relationship between the chemical solution bag 10 and the vial 20. It becomes possible.

  Here, the openings 16 and 17 facing downward in FIG. 5 are facing upward in FIG. 8. This state corresponds to the state shown in FIG. The configuration in the vicinity of the openings 16 and 17 is the same as the configuration in FIG. That is, even in the state of FIG. 8, an air reservoir that blocks one of the openings 16 and 17 is prevented from expanding and simultaneously blocking both the openings 16 and 17.

  Through the steps as described above, the chemical solution in the vial 20 can be injected into the chemical solution bag 10. The drug solution in the drug solution bag 10 is administered into the body through a tube with a needle tube pierced through the port portion 19 (FIG. 1).

  In the present embodiment, the example in which the two through channels 8 and 9 are formed in the shaft portion 7 has been described. However, three or more through channels may be formed. In this case, at least one of the three or more through passages serves as a through passage for circulating air, and at least one serves as a through passage for circulating liquid.

  More specifically, when three or more through channels are formed, two of the three or more openings are separated at one end of the shaft portion 7 as shown in FIG. 6A, for example. What is necessary is just to provide the structure isolate | separated by the part 18 at least.

  Next, a connection structure between the first connecting portion 3 and the chemical solution bag 10 will be described with reference to FIGS. FIG. 9 is a cross-sectional view showing a state before the first connecting portion 3 and the chemical solution bag 10 are connected. As described above, the connection port 40 is attached to the chemical solution bag 10. A port portion 41 is attached to the distal end portion of the connection port 40. A septum (partition wall) 42 having a slit 45 is attached to the port portion 41. 9 corresponds to a cross-sectional view taken along line BB in FIG. A lever-type lock 12 is integrated with the first connecting portion 3.

  FIG. 10 is a cross-sectional view showing a state in which the first connecting portion 3 is engaged with the port portion 41 and connected. The port portion 41 is inserted into the connection port 11, and the claw portion 13 of the lever lock 12 is engaged with the end surface 41 a of the port portion 41. When the port portion 41 is inserted into the connection port 11, the lower portion of the lever type lock 12 in FIG. 9 is bent toward the central axis 11 a side (in the direction of arrow c) of the connection port 11. The part 13 is displaced away from the central axis 11a of the connection port 11 (in the direction of arrow h). When the insertion of the port portion 41 into the connection port 11 is completed, the claw portion 13 is engaged with the end surface 41a of the port portion 41 as shown in FIG.

  Here, in FIG. 9, the shaft portion 7 is covered with a shield 26 that can be opened and closed by expansion and contraction. A slit 27 is formed in the shield 26, and when the shield 26 contracts, the slit 27 is formed (FIG. 10), and when the contracted shield 26 is restored, the slit 27 is formed (FIG. 9). become.

  In the state of FIG. 9, the shield 26 covers the shaft portion 7, whereas in the state of FIG. 10, the shield 26 contracts and the shaft portion 7 protrudes from the shield 26. This is because when the port part 41 is inserted into the connection port 11, the lower part of the port part 41 presses the shield 26 down.

  The tip portion of the shaft portion 7 that protrudes from the shield 26 pushes up the septum 42 attached to the port portion 41 and opens the slit 45 (FIG. 9) of the septum 42. As a result, the internal space of the connection port 40, the internal space of the connection port 40, and the pair of through channels 8 and 9 of the shaft portion 7 are connected.

  Next, after injecting a required amount of the chemical solution into the chemical solution bag 10, the first connection portion 3 integrated with the vial bottle 20 is removed from the port portion 41. In this removal, in FIG. 10, the lower part of the lever-type lock 12 is pressed toward the center axis 11 a side (arrow c direction) of the connection port 11, and the claw portion 13 of the lever-type lock 12 is moved to the center of the connection port 11. What is necessary is just to displace so that it may leave | separate from the axis | shaft 11a (arrow h direction).

  After the first connecting portion 3 is removed from the port portion 41, the state returns to the state shown in FIG. In the state of FIG. 9, the contracted shield 26 is restored and covers the shaft portion 7 again. In this state, leakage of the chemical solution in the vial 20 is prevented.

  In addition, the 1st connection part 3 in this Embodiment is an example, and can use various connection systems. Moreover, although the example which comprised the 1st connection part 3 with the connector main body 2 and another component demonstrated, depending on the structure of the 1st connection part 3, the structure which shape | molded the 1st connection part 3 and the connector main body 2 integrally is also possible. Conceivable.

  Next, a connection structure between the second connection portion 4 and the vial 20 will be described with reference to FIGS. FIG. 11 is a cross-sectional view showing a state before connection between the second connection portion 4 and the vial 20. The mouth 22 of the vial 20 is sealed with a cap 24 via a rubber plug 23.

  An opening 30 is formed in the central portion of the cap 24. Thereby, a part of the rubber plug 23 is exposed at the position of the opening 30.

  In the second connection portion 4, a protruding portion 46 protruding from the inner peripheral surface of the connection port 6 is formed. An enlarged diameter portion 47 is formed in the mouth portion 22 of the vial 20. As will be described later with reference to FIG. 12, the protruding portion 46 of the second connection portion 4 is engaged with the diameter-expanded portion 47 of the vial 20.

  FIG. 12 is a cross-sectional view showing a state in which the second connection portion 4 and the vial 20 are connected. The second connection portion 4 is engaged with the mouth portion 22 of the vial 20. As shown in FIGS. 3 and 11, a slit 5 is formed on the side surface of the connection port 6 to facilitate the engagement between the second connection portion 4 and the vial 20.

  In FIG. 12, a needle-like portion 28 integral with the shaft portion 7 is pierced through the rubber stopper 23 of the vial bottle 20. The protruding portion 46 of the second connection portion 4 is engaged with the enlarged diameter portion 47 of the vial 20, thereby preventing the second connection portion 4 from coming off from the vial 20.

  Unlike the first connection portion 3, the second connection portion 4 does not include a mechanism that facilitates the release of the connection, such as the lever-type lock 12. For this reason, if the engagement between the second connecting portion 4 and the vial 20 is made strong, the second connecting portion 4 can be prevented from being easily detached from the vial 20. Thereby, leakage of the chemical solution due to easy removal of the vial 20 can be prevented.

  Further, after removing the first connection portion 3 from the chemical solution bag 10, the shield 26 covers the shaft portion 7 as shown in FIG. 9. Therefore, even after the first connection portion 3 is removed from the chemical solution bag 10, leakage of the chemical solution from the shaft portion 7 is prevented.

  Therefore, if the first connection part 3 is removed from the medical solution bag 10 and the vial 20 is discarded in a state where the connection state between the second connection part 4 and the vial 20 is maintained, the medicine in the vial 20 Leakage is prevented.

  The drug leakage prevention structure as described above is particularly effective when the drug in the vial 20 is a highly toxic drug such as an anticancer drug.

  In addition, the 2nd connection part 4 in this Embodiment is an example, and can use various connection systems. For example, in FIG. 12, the second connection portion 4 is configured to engage with the mouth portion 22 of the vial 20, but may be configured to engage with the body portion.

  In addition, the second connection portion 4 is formed integrally with the shaft portion 7. However, if the second connection portion 4 cannot be easily detached from the connector body 2, the second connection portion 4 is connected to the shaft portion 7. You may comprise with another component.

  Moreover, although the needle-shaped part 28 demonstrated in the example of the structure pierced by the rubber stopper 23 in the opening | mouth part 22 of the vial container 20, it is not restricted to this structure, The needle-shaped part 28 is a part of vial container 20. Any structure that pierces can be used. For example, the whole vial bottle 20 may be formed of a soft material, and the needle-like portion 28 may be configured to pierce the soft material.

(Embodiment 2)
In the first embodiment, the first connecting portion 3 has been described as an example in which the lever-type lock 12 is integrated with the connection port 11, but in the second embodiment, the first connecting portion has a rotary lock structure. It is a form.

  FIG. 13 is a perspective view of the connector 50 according to the second embodiment. FIG. 14 is a longitudinal sectional view of the connector 50 shown in FIG. The configuration of the connector 50 corresponds to a configuration in which the first connection portion 3 provided with the lever lock 12 is replaced with the first connection portion 51 of the rotary lock structure in the connector 1 of the first embodiment shown in FIG. To do.

  The connector 1 according to the first embodiment and the connector 50 according to the present embodiment have the same configuration except for the first connection portion 51, although there are some other configurations that are different in shape. For this reason, the operating principle of the flow of the liquid between the first connection portion 51 side (the drug solution bag 10 side) and the second connection portion 4 side (the vial bottle 20 side) is the same as that of the first embodiment.

  FIG. 15 is a partially enlarged view showing a state before the first connection portion 51 is connected to the chemical solution bag 10 side. In the first connection portion 51, the main body 52 and the enlarged diameter portion 53 are integrated, and a flange 54 is erected on the enlarged diameter portion 53. The flange 54 has a notch 54a. A concave portion 55 is further formed in the flange 54. The recess 55 is a groove that is recessed from the inner peripheral surface of the flange 54. The recess of the recess 55 is integrated with the recess formed by the notch 54a.

  The port unit 48 corresponds to the port unit 41 in FIG. 9 of the first embodiment. A convex portion 49 is formed on the outer peripheral surface of the port portion 48. The outer shape of the convex portion 49 is a shape that engages with the concave portion 55 of the first connecting portion 51.

  When connecting the first connection part 51 to the port part 48, the first connection part 51 is brought close to the port part 48, and the convex part 49 of the port part 48 is made to correspond to the position of the notch part 54a. When the first connecting portion 51 is rotated around the axis in this state, the convex portion 49 approaches the concave portion 55 while maintaining the state where the convex portion 49 is on the inner peripheral surface side of the flange 54. If the rotation of the first connecting portion 51 around the axis is continued, the concave portion 55 is engaged with the convex portion 49, and the first connecting portion 51 is connected to the port portion 48.

  If the rotation of the first connecting portion 51 about the axis is opposite to the rotation direction, the engagement between the convex portion 49 and the concave portion 55 is released, and the first connecting portion 51 is removed from the port portion 48. Is possible.

  Here, in FIG. 14, the shaft portion 7 is covered with a shield 34. This configuration is the same as that the shaft portion 7 is covered with the shield 26 in FIG. Although not shown in FIG. 15, the inside of the port portion 48 includes a septum similar to the septum 42 with the slit 45 in FIG.

  Therefore, also in the present embodiment, as in the connection state of FIG. 10, when the first connection portion 51 is connected to the port portion 48, the shield 34 is compressed and the tip portion of the shaft portion 7 is And the tip portion of the shaft portion 7 breaks the slit of the septum in the port portion 48, and the pair of through-flow passages 8 and 9 of the shaft portion 7 and the internal space of the port portion 48. Will be connected.

  As described above, the connector according to each of the above embodiments can be circulated between the containers. For this reason, the container connected to a connector is not restricted to a chemical | medical solution bag and a vial bottle, A liquid can be distribute | circulated between containers using various containers.

  As described above, the connector according to the present invention can allow liquid to flow between containers with a simple configuration and simple operation.For example, when injecting a drug in a vial into a drug solution bag, It is useful as a medical connector interposed between a drug solution bag and a vial.

DESCRIPTION OF SYMBOLS 1,50 Connector 2 Connector main body 3,51 1st connection part 4 2nd connection part 5 Slit 6 Connection port (engagement part)
7 Shaft portion 7a Side surface of shaft portion 8, 9 Through passage 11 Connection port 10 Chemical solution back (first container)
12 Lever type lock 13 Claw part 14, 15, 16, 17 Opening 18 Separation part 18a Extension part 19 Inclined surface 20 Vials (second container)
22 Portion 23 Rubber stopper 25 Horizontal surface 26, 34 Shield 29 Center axis 28 Needle-like part 46 Projection part 49 Projection part 51 Rotating lock (first connection part)
55 recess

Claims (6)

A connector that connects to the first container and the second container, and circulates the liquid between the first container and the second container via a shaft,
The shaft portion includes a plurality of through-flow passages penetrating the shaft portion,
The plurality of through channels have openings formed at both ends of the shaft portion,
The shaft portion forms a separation portion that is interposed between the openings and separates the openings.
When a plane in a direction orthogonal to the axial direction of the shaft portion is a horizontal plane,
The separation unit, the separation extending portion extending from the horizontal plane including the opening separated on the distal end side of the shaft portion in section there is,
An inclined surface that is inclined so as to move away from the central axis of the shaft portion as the distance from the tip of the shaft portion is formed at both ends of the shaft portion, and the separation portion is separated on the inclined surface by the separation portion. Forming an opening,
The opening separated by the separation part is formed on the flat inclined surface,
The connector includes a first connection portion that engages with the first container, and a second connection portion that engages with the second container,
In the second connection portion, an engagement portion that engages with the second container and the shaft portion are integrated,
Of the both ends of the shaft portion, a needle-like portion that pierces the second container is formed at the end on the second connection portion side,
The first connection portion includes a release mechanism that releases engagement with the first container, and the second connection portion includes a release mechanism that releases engagement with the second container. The connector characterized by not having. The engaging portion of the second connecting portion is a cylindrical connecting port that engages with the second container, and the connecting port forms a protruding portion that protrudes from an inner peripheral surface of the connecting port. The connector according to claim 1 . The connector according to claim 2 , wherein the connection port forms a slit in which a side surface of the connection port is cut out. The first connecting portion is integrally formed with a lever-type lock having a claw portion that engages with a part of the first container, and the lever-type lock engages with the first container. The connector according to any one of claims 1 to 3 , wherein the connector also serves as a release mechanism for releasing, and the engagement between the lever-type lock and the first container is released by the bending of the lever-type lock. The first connecting portion is a rotary lock, and the rotary lock includes a concave portion that engages with a convex portion formed in the first container, and the rotary lock is the first container. also it serves as a release mechanism for releasing the engagement of the, by the rotation around the axis of the rotary lock, according to any of claims 1 to 3 in which the engagement between said projection portion and the concave portion is released connector. Wherein the shaft portion, the connector according to any one of claims 1 to 5, there is a covered portion in open shielded by stretching.

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